I wanted to know if any of you have experienced and major behavioral problems with your child? My son will be 3 in March and is really going through a major issue with his behavior. I am told by people that it's just the terrible two's and it will get better, but it seems more serious than that. I have read that learning disabilities may occur with a Duchenne boy but he does not lack intelligence, in fact he is very smart. He does well in school and is very social. Any advice would be appreciated.